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Inflationary potentials yielding constant scalar perturbation spectral indices

Alberto Vallinotto·Edmund J. Copeland·Edward W. Kolb·Andrew R. Liddle·Daniele A. Steer
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Abstract

We explore the types of slow-roll inflationary potentials that result in scalar perturbations with a constant spectral index, i.e., perturbations that may be described by a single power-law spectrum over all observable scales. We devote particular attention to the type of potentials that result in the Harrison--Zel'dovich spectrum.

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Alberto Vallinotto, Edmund J. Copeland, Edward W. Kolb, Andrew R. Liddle, Daniele A. Steer. 2004-02-11. Inflationary potentials yielding constant scalar perturbation spectral indices. https://doi.org/10.1103/physrevd.69.103519

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